SU1117133A1 - Readjustable chuck - Google Patents

Abstract

TRANSFORMABLE-WEATHER CARTRIDGE, containing sliders with wedge grooves installed in the housing, clamping jaws fixed to the sliders x, a sleeve mounted in the central hole of the cartridge case, and 1 Hydropneeller, which is mounted on the sleeve, with the aim of the sleeve, with the aim of the sleeve, with the aim of the holder, mounted on the sleeve, which is mounted on the sleeve, with the aim of the holder to fit the sleeve, in the case of the sleeve, the sleeve is mounted on the sleeve; According to the opportunities of the world, by means of the wear and tear of compensating cam movements during the clamping of parts with deviations from the symmetry of the structural design, the piston is screwed onto the barrel: 1ke with the possibility of radio transmission and Indras provided rigidly bound to it levers razmetennymi in k.pshovyh paza.h slides and mounted with a nornshe na () s () zhpostyo axial neremescheni.

Description

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The invention relates to clamping chucks and can be used for securing parts machined on milling and drilling machines.

Known readjustable cartridge containing installed in the housing sliders with wedge grooves, clamping cams mounted on the sliders, a sleeve installed in the central hole of the body of the cartridge, and the power cylinder, the piston of which is mounted on the sleeve 1.

The disadvantages of the known device are the complexity of the design, as well as the fact that it does not compensate for the displacement of cams when clamping an asymmetrical part, which reduces its technical characteristics (; J (;;; g).

- U: ii.irt and:) |; b;) etepi :. is the expansion of the technological capabilities of the cartridge iisve.v; providing compensating reMLr: i; i-r .i; i cams when clamping parts with iX .. 1g: 11th of symmetry and simplicity; and: design.

 | 1.) C-gavlenna goal is achieved by the fact that i and: yy; oie containing sliders installed in KCiiMivro with wedge grooves, clamp; B1c to lachi. mounted on the slide .ch, -; gu.1ku, installed in the central oiBtiM-iKH body of the cartridge, and the hydraulic cylinder, Mv.iMiirnij to (.1to) mounted on the sleeve,) 1си1, mounted on the sleeve with the possibility of KiTT ir; radial aislerenin, and hydroj .i: ii,; i ./is rigidly connected with: -; i: -.i-iai chmi, exchanged in wedge na.ia: -; Cho, i yiiui ;, to set} on a norn with d1 .. ;; l1 {. ossvogo movement.

FIG. 1 shows a device, bit P (., -.,: A-Fig. 2 - the same, top view; in Fig. 3, a cartridge with three cams; section; pa f; n. 1, the same, top view.

1 hot-loaded cartridge consists of a body K in the central part of which is installed 5. iena sleeve 2, cylinder 1, cylinder 3, () D) flanges 4 and 5. In sleeve 2 between oi, o; .iHbis, f.1ansha, mi 4 and 5 s. mounted not 11) Di ;; W: .o in axial direction (but with a possible 1U ;-(; movement relative to the cylinder; fa 3), piston 6. There is a gap 7 between the latter and cylinder 3 7. At the sump there are a hydraulic cylinder 8 with two or clamping levers 9, the ends of which are in contact with inclined surfaces il il and 12 crawlers 3, on which interchangeable cams 14 and 15 are fixed.

To install the workpiece 16 (FIGS. 1 and 2) and fix it to two

the cams 14 serve as a replaceable centering element 17, and for mounting the workpiece of my part 18 (FIGS. 3 and 4) and fixing it with three cams 15 - a replaceable centering 1O n; and e-meme 19.

Cavities 20 and 21 are provided to ensure the passage of the mold 6 and the introduction of the working fluid.

The device works as follows.

Detail 16 (Fig. 1 and 2) or 18 (Fig. 3 and 4) is installed in the centering element 17 and 19. When the working fluid is fed into the cavity 20, the change of the hydraulic cylinder 8 occurs downwards. The lever 9 comes into contact with the tapered surface 1 of the slide 13 and moves it to the right until it contacts one of the cams 14 and 15 with the corresponding workpiece 16 or 18. The movement of the slide does not crack, but the operating pressure in the cavity 20 continues to grow and the hydraulic cylinder 8 aspires go down. At the same time, the end 10 of the lever 9 is skol1, zct but inclined surface 11 and causes the hydraulic cylinder 8 to move downward to the left. Associated with hydrocylium) core 8 nopn.ieiib 6 is limited in axial alternation with an o-flange 5, which causes it to r; move only to the left due to the gap 7 relative to cylinder 3 of sleeve 2.

The movement of the hydraulic cylinder 8 and the culling 6 continues until all the cams 14 or 15 touch the surface, respectively, of the part 16 or 18. after which the pressure of the working fluid in the cavity 20 1 increases, and the cylinder 8 presses the rim 6 with the end surface to the support feature 5, and Intermediate m. of the sliders 3 and the cams 14 or 15 occurs on the southern fastening of the workpiece 16 and 18.

The unclamping of the part is carried out by bending the working pressure into the cavity 2 of the hydro-cylinder 8. In this case, the gap 6 abuts against the flange 4, and the hydraulic cylinder 8 moves upwards. The end 10 of the lever 9 acts on the surface of the 12 slider 13 and releases the part.

Changing the cartridge to another part is done by replacing the centering element 17 or 19, as well as changing the cams 14 or 15.

The use of the invention allows the y ipocTHTb design of the cartridge to reduce its metal consumption and reduce manufacturing costs, as well as expanding technological capabilities by allowing parts to be clamped with a deviation from symmetry.

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Claims (1)

REMOVABLE CARTRIDGE comprising sliders with wedge grooves installed in the housing, clamping cams mounted on sliders, a sleeve installed in the central hole of the cartridge housing, and a hydraulic cylinder, the piston of which is mounted on the sleeve, characterized in that. which, in order to expand technological capabilities by providing compensating cam movements when clamping parts with a deviation from symmetry and simplifying the design. the piston is mounted on the sleeve with the possibility of radial movement, and the hydraulic cylinder is equipped with rigidly connected levers placed in the wedge grooves of the sliders, and mounted on the piston with the possibility of axial movement. P 16 Figure 1